Liquid level gauge



May 10, 1932.

C. KNOBLOCH LIQUID LEVEL GAUGE Filed Sept. 7, 1928 m m TC N mm m V B TN. o H aw & %V Y B J a .l I \J. 2 M 9- w. an 1 1, 6. M

' designates such as gasoline The general purpose of the invention is totom of a tank and having suitable connections to "when connecting or inthe accompanying to the bottom 1 end to any suitable Patented May 10;1932 LIQUID 'LEVEIJ lemma I Application filed September: 1.119231sardine; 364,597;

This invention relates togauges ior'tanks,

' tanks of automobiles.

rovide a pressure responsive device adapte to be threaded into theopening in the hotso as to be readily accessible an indicatinginstrument, for example, one arrange on the dash of an automobile.

More particularly, the invention has for its object the provision incombination with a pressure responsive diaphragm adapted to be threadedto the bottom of a tank, of connec' tions from the diaphragm to a fixedindicating instrument which will not be disturbed disconnecting theiahragm with the tank.

The foregoing and other objects are attained in the gauge constructionillustrated drawings and described below.

Of the accompanying drawings:

Figure 1 is a diametral section through a pressure responsive deviceshown attache of a gasoline tank;

line %-2 of Figure Figure 2 is a section on 1; and

Figure 3 is an enlarged detail section illustrating the connections ofthe diaphragm to the nipple for threading into the tank and to theelement for actuating the indicator.

Referring to the drawings, the numeral 10 a tank suchas used forgasoline on an automobile, the bottom vhaving a threaded aperturetherein at 11,

The improved gauge includes a housing 12 having a nipp into aperture 11to secure the housing onto the bottom v ing a pressure responsivearrange in the housing and threaded into the lowerv end of nipple 13 Forconnecting the which is not a part of this invention though 18 isthreaded into diagrammatically the lowerend phragm at 17. This headisprovide a bore 18 having a shoulder at 19 therein 0n onrmxnonrocn; orAirmen-50am as a wireQ'Z which leads to the indicating 1n-,

le 13 thereon for threading of the tank and also for connect= diaphragmcon;- struction 14 thereto, the latter being p 4 1 g 'tobe threadedjntowhich] seats a swivel 20, A I

the"? the boreabein-gsea'ledby a plug 2'lsplacedig r thereinwafft'ertheswivel'is mountedjrinpl'acejg The lowercnd-of the swivel headv16iseen-x x aged in. an aperture 22' in the'vbottom or. housing 112.1 1 5A second 'liou'sing 23'is swiveled atz24onto. thebottoni of housing 12and supportswaipul-w ley '25 thereon, about which is trained afiexi-able element such as a chain 26 connectedito a headed pinfiQO-whichisloosely or rotatably. supported d ofthe2bore..18,..

1n. the lower en I which isrestricted forthe purposeaofireceivmgandsupportmg the pin. 0111111126 is in} turn connected with a xibleelement such-J strument-for operation thereof through, a, tubular armthe housing 23. i 1 I By this arrangement, when-the pressure;

' threaded. into fQr responsive device is bein ich is efiectedbyiitwisting;- of the flexible removed from the tank w rota-ting housing 12,connection is preventedby swivel: QO-andalso 'reason'of the fact that.h0using:23.-is.held;, substantially stationary becausevo Zthe ten}- sionin't'he flexible connection, thehonsing', 12; rotating relative thereto.Accordingly,the 1 2-;

ressure responsive device is easily connecte, or disconnected: with thetank when desired, as for installing-error drainingthetankorreplacingparts. L

It will be apparent that by. :theginvention, a;

the construction of auges of this character; is greatly .im ro'v.Ohviouslyyi-modificaag tions of: the invention may beifresorted.without departing from the scope of: the'appended claims What is claimed1s 1. gauge for" a tank having ithreade I aperture in. its :boom,compris1ng aihonsingi res'sure responsive d vice thereineadaptedcommunicate withthe fluid in:.the dicator, a flexi bottomo'f said deviceto the .sind; t means for connecti saiddevice,a secon 1 responsivedevice mounted ing a tubular arm through which the flexible element isled out of the second housing.

2. A gauge for a tank having a threaded aperture in its bottom,comprising a housing, a pressure responsive device therein adapted to bethreaded 'into said aperture so as communicate therethrough with fluidin the tank, an indicator, a flexible element forconnecting the bottomof said device to the indicator, and swivel flexiblha element to saiddevice.

3. i therein, comprising a housing, a pressure responsive device thereinadapted to be mounted in said aperture so as to communicate therethrough.with the-fluid; in the tank, an indicator, a flexible elementyiorconnecting the bottom of said devicetoythe indicator, swivel means forconnectin the flexible element to'said device, a second ousing swiveledonto the bottom of the first housing and formed with an aperture, andmeansm the second housin over which said flexible element is traine saidflexible element passing throu h the aperture in; the second housing.

4. gauge for a tank lhaving an aperture therein, said. gauge comprisinga pressureupon the tank and in communication with the fluid thereinthrough said aperture,-ax 'i i'ndicator, and flexible meansconnecting'the indicator to the pressure-responsive device, saidflexible 'means having swivel connection with the latter. f

5. The combination with a fuel tank of an automobile having an aperturetherein,

means for connecting the 8. The combination with a tank having anaperture in the bottom thereof, a pressure-responsive diaphragmconnected to the outside of the tank and in communication with the tankthrough said aperture, an indicator remote from the diaphragm, an axialshort nection being swiveled to the stud.

. CARL KNOBLOCH.

gauge for a tank having'an aperture I of a pressure-responsive devicesecured to the tank and having communication with the fluid thereinthrough said aperture, an indicator relatively remote from thepressureresponsive device, and attenuated flexible means swiveled to thelatter and operatively connecting it with the indicator.

6. The combination with a tank having an apertureins the bottom thereof,a pressure responsive device connected to the outside of the tank andin'communication with the tank through said'aperture, a housing aboutsaid device, a second housing below the first and swivelly connectedthereto, and an axial stud projectlng from the device, said stud adaptedto move "toward and from and at times extendin in-saidisecond housing.

e combination with aperture inthe' bottom thereof, a pressure responsive"diaphragm connected to the outs side- 0f the tankand in communicationwith the tank' 'through said aperture, ashort rigid stud 'fattached -toand projecting from the c'entero'f the diaphragm outside of the tank,

an indicatorrelatively remote from said diaphragm, and attenuatedflexible means .con-

relatively remote from said aphragm to the stud, said flexible meansbeing swivelled in the latter.

a tank having an

